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# OAR Box 

# 1846 Prepped byOllie Stewart



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Number: 

# 4 ) ll-B- 1 Docket Number: 

# A-90-0 7

Printed 11/18/20087:30:14AM Sheet 4of 93P. 2

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MEMORANDU

M SUBJECT : FROM : TO :
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## k-<*D-0 7 "JT-fc- /

UNITE D STATE S ENVIRONMENTA LPROTECTIO NAGENC Y

WASHINGTON

, D.C
. 20460 

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## EPA AI RPOgggg TM Characterizatio no f Registere d Fue l Additive s . .\n<\ 

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# I « l HP ' Davi d J . Kortum , Environmenta l Engineer;V\fwN MMU Fuel s Sectio n[ W * v BarryD . Nussbaum , Acting Directo r Fiel d Operation s an d Suppor t Divisio n Jame s W . Caldwell , Chief , Fuel s Sectio n
I hav e complete d a preliminaryinvestigatio n o f th e compound s registere d a s component s o f additive s i nth e Fue l an d Fue l Additiv e Registratio ndat a base . Th e summaryo f th e result s o f tha t investigatio nar e containe d herein . Pleas e refe r t o th e attache d scale d graphi c (Figur e 1 ) a s figure s ar e presente d throughou t thi s memorandum . I t shoul d als o b e note d that , sinc e th e databas e change s continuousl ya s ne wadditive s ar e adde d an d removed , th e number s containe d herei nar e clos e approximations . I . Metho d o f Analysi s Th e compositio no f additive s registere d i nth e dat a bas e i s reporte d a s a lis t o f components . Thes e component s ar e eithe r chemica l compound s (whichmayb e fairl ypur e o r mayb e a mixtur e o f simila r compounds ) o r previousl yregistere d additives . Additive s typicall yar e compose d o f betwee non e an d four components . Currently , th e onl yavailabl e wayt o categoriz e additiv e component s i s b yth e name o f th e componen t whic hi s entere d a s a string o f character s i nth e database . B ysearching thes e string s fo r certai nkeywords , th e numbe r o f component s falling int o a specifi c categoryca nb e identified . I f a componen t o f a nadditiv e i s alread yregistered , th e identificatio n numbe r o f th e additiv e (ID ) i s als o entere d a s par t o f th e string identifying tha t component . Sinc e thes e I D string s hav e certai n commo n characters , previousl yregistere d component s ca n b e identifie d a s a grou p using th e commo npart s o f th e I D string entry . Th e naming o f chemica l compound s o r mixture s o f chemica l compound s i s no t a nexac t nomenclatur e system . Eve nwithi n standardize d system s fo r naming organi c compounds , man y"common " names , no t subjec t t o rigorou s rule s o f nomenclature , hav e endure d an d ar e considere d acceptable . Additionally , ther e ar e alternat eP. 3 Mr J

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method s fo r naming chemical s eve nwithi na rigorou s system . Therefore , an

ystring searc ht o classif ychemical s canno t b e perfectl yexact . (Late r i nthi s memo , I wil l mak e a recommendatio n concerning on e possibl e solutio nt o thi s drawbac k i nou r curren t system. ) Furthermore , some compound s legitimatel ybelong t o mor e thanon e chemica l group . Unde r th e "rules " o f a string search , a n "oi l solvent " coul d en d up being i nth e solven t grou p an d th e "oil " group . A"polyethe r amine " coul d en d up i nth e "polymer " group , th e "ethe r group " an d th e "amin e group" . Thus , i t i s importan t t o keep i nmind tha t man yo f th e group s i nth e attache d figur e actuall yoverlap . Afte r reviewing a larg e numbe r o f additive s ove r severa l months , i t i s m yopinio ntha t th e overlap i s limited ; however , th e actua l exten t o f th e overlap i s no t currentl yknown . I hop e t o furthe r refin e thes e categorie s i n th e nea r future .

II . Discussio nan

d Conclusion s W e currentl yhav e registere d 5,65 3 additive s containing 14,75 2 components . O f these , 3,78 4 additive s containing 10,39 8 component s ar e active . (I f a manufacture r stop s sal e o f a compound , a notificatio ni s sen t t o u s t o remov e th e additiv e fro mactiv e status. ) O f th e 3,78 4 activ e additives , 1,17 2 ar e relabel s compose d solel yo f previousl yregistere d additives . Thi s leave s 2,61 2 additive s whic hcontai n7,08 3 compound s tha t hav e no t bee n previousl yregistered . Thes e 7,08 3 compound s compos e th e primary dat a bas e o f currentl yuse d chemical s foun d i nfue l additive s an d i t i s fro

mthi s starting poin t tha t categorizatio nbegins . Belo wi s a lis t o f chemica l categorie s an d th e numbe r o f additiv e component s whic hfal l int o thos e categorie s using th e categorynam e i na string search . ( I hav e actuall yproduce d tw o lists . Th e firs t i s alphabetic , th e secon d i s i norde r o f th e numbe r o f component s foun d i ntha t category. ) Pleas e kee p i n mind tha t th e number s liste d her e indicat e th e numbe r o f component s whic hcontai nth e string o f character s calle d th e category . Also , pleas e refer t o Figure 1 whic hgraphicall yindicate s th e relativ e siz e o f the variou s categories .- 3 - P. 4

Category

alcoho l amid e amin e benzen e bromid e carboxylat e chlorid e creso l ethe r kerosen e lead naphtha nitrat e nitrit e oi l pheno l phosphat e polyme r resi n solven t toluen e xylen e Numbe r o f

Component s 104 2 15 7 42 4 10 6 1 2 10 9 7 8 1 7 24 4 23 4 7 9 22 9 6 0 6 53 3 25 6 4 1 11 4 7 8 37 0 17 1 28 0
III . Recommendation s Category

alcoho l oi l amin e solven t xylen e pheno l ethe r kerosen e naphtha toluen e amid e polyme r carboxylat e benzen e lead resi n chlorid e nitrat e phosphat e creso l bromid e nitrit e Numbe r o f

Component s 104 2 53 3 42 4 37 0 28 0 25 6 24 4 23 4 22 9 17 1 15 7 11 4 10 9 10 6 7 9 7 8 7 8 6 0 4 1 1 7 1 2 6

I recommend th e following : 1 ) W e shoul d see k inpu t fro m AnnArbo r regarding th e type s o f categorie s whic hwoul d prov e mos t meaningfu l i nregard s t o th e ultimat e us e o f th e dat a base . (Optionally , w e coul d us e contrac t hel p t o formulat e suc ha classificatio nsystem. ) 2 ) Ane wfiel d i n th e dat a bas e shoul d b e constructe d s o tha t chemica l component s ca nb e classifie d a s registration s ar e received . Thi s woul d alleviat e th e problem s associate d wit h ambiguou s naming system s an d string searches . Sinc e th e dat a retrieva l softwar e o nou r VA Xsystemwil l soo nb e changed , no w i s a goo d tim e t o construc t suc ha field . 3 ) Additiona l help , possibl yunde r contract , wil l b e neede d t o categoriz e an

d inpu t categorydat a fo r th e approximatel y7,00 0 compound s whic hhav e alread ybee nprocessed .P. 5

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I believ e tha t i f w e quickl yimplemen t a system suc ha s this , w e wil l b e readil yabl e t o answe r AnnArbor' s question s abou t th e dat a a s th e question s ar e posed . I f yo u woul d lik e an yfurthe r explanatio no f thi s issue , pleas e le t m e know .P. 6

Figur e 1 . Additiv e Component s b yCategor y- Septembe r 198 9 .r-TA 1'X-D (1e/ X c" V A-". (J0 " I - , J' 

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